The Gillette Mach3 is a line of safety razors produced by Gilette and introduced in 1998 after more than $750 million in research and development costs.[1] The three blade design is marketed by Gillette as allowing for a shave with less pressure to the skin and with fewer strokes, thereby reducing skin irritation.

Other razors in the Mach3 series are the Mach3Turbo and the M3Power. All Mach3 series razor blades are interchangeable between the three. The Venus series of razors marketed to women are based on their Mach3 counterparts. The Venus is based on the Mach3, the Venus Divine based on the Mach3Turbo and the Venus Vibrance is based on the M3Power. The Venus models feature grip shapes and lengths that are different to their Mach3 counterparts to assist with the differing angle and reach needs of women shavers.